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                                <h3 id="no2-&#x6C42;&#x6700;&#x503C;&#x591A;&#x7EC4;&#x8F93;&#x5165;">NO.2 &#x6C42;&#x6700;&#x503C;(&#x591A;&#x7EC4;&#x8F93;&#x5165;)</h3>
<h5 id="description">Description:</h5>
<p>&#x7ED9;&#x5B9A;N&#x4E2A;&#x6574;&#x6570;&#xFF08;1&lt;=N&lt;=100&#xFF09;&#xFF0C;&#x6C42;&#x51FA;&#x8FD9;N&#x4E2A;&#x6570;&#x4E2D;&#x7684;&#x6700;&#x5927;&#x503C;&#xFF0C;&#x6700;&#x5C0F;&#x503C;&#x3002;</p>
<h5 id="input">Input:</h5>
<p>&#x591A;&#x7EC4;&#x6570;&#x636E;&#xFF0C;&#x7B2C;&#x4E00;&#x884C;&#x4E3A;&#x4E00;&#x4E2A;&#x6574;&#x6570;N&#xFF0C;&#x7B2C;&#x4E8C;&#x884C;&#x4E3A;N&#x4E2A;&#x4E0D;&#x8D85;&#x8FC7;100&#x7684;&#x6B63;&#x6574;&#x6570;&#xFF0C;&#x7528;&#x7A7A;&#x683C;&#x9694;&#x5F00;&#x3002;</p>
<h5 id="output">Output:</h5>
<p>&#x5BF9;&#x6BCF;&#x7EC4;&#x6570;&#x636E;&#x8F93;&#x51FA;&#x4E00;&#x884C;&#xFF0C;&#x5305;&#x542B;&#x4E24;&#x4E2A;&#x6574;&#x6570;&#xFF0C;&#x7528;&#x4E00;&#x4E2A;&#x7A7A;&#x683C;&#x9694;&#x5F00;&#xFF0C;&#x5206;&#x522B;&#x8868;&#x793A;N&#x4E2A;&#x6570;&#x4E2D;&#x7684;&#x6700;&#x5927;&#x503C;&#x548C;&#x6700;&#x5C0F;&#x503C;</p>
<h5 id="sample-input">Sample Input:</h5>
<pre><code>5
4 6 7 3 1
4
4 3 5 1
</code></pre><h5 id="sample-output">Sample Output:</h5>
<pre><code>7 1
5 1
</code></pre><pre><code class="lang-Java"><span class="hljs-keyword">import</span> java.util.Scanner;

<span class="hljs-keyword">public</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">Main</span> </span>{
    <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">void</span> <span class="hljs-title">main</span><span class="hljs-params">(String[] args)</span></span>{
        Scanner s = <span class="hljs-keyword">new</span> Scanner(System.in);
        <span class="hljs-keyword">while</span> (s.hasNextInt()){<span class="hljs-comment">//&#x591A;&#x7EC4;&#x8F93;&#x5165;</span>
            <span class="hljs-keyword">int</span> n = s.nextInt();
            <span class="hljs-keyword">int</span> max = <span class="hljs-number">0</span>;
            <span class="hljs-keyword">int</span> min = <span class="hljs-number">101</span>;
            <span class="hljs-keyword">while</span>(n--&gt;<span class="hljs-number">0</span>){
                <span class="hljs-keyword">int</span> num = s.nextInt();
                <span class="hljs-keyword">if</span>(num&gt;max)max=num;
                <span class="hljs-keyword">if</span>(num&lt;min)min=num;
            }
            System.out.println(max+<span class="hljs-string">&quot; &quot;</span>+min);
        }
    }
}
</code></pre>
<h3 id="noj1005-&#x591A;&#x9879;&#x5F0F;&#x52A0;&#x6CD5;">NOJ1005 &#x591A;&#x9879;&#x5F0F;&#x52A0;&#x6CD5;</h3>
<p>&#x9519;&#x8BEF;&#x4EE3;&#x7801;</p>
<pre><code class="lang-Java"><span class="hljs-keyword">import</span> java.util.Scanner;

<span class="hljs-keyword">public</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">Main</span> </span>{
    <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">void</span> <span class="hljs-title">main</span><span class="hljs-params">(String[] args)</span></span>{
        Scanner s = <span class="hljs-keyword">new</span> Scanner(System.in);
        <span class="hljs-keyword">int</span> k,n;
        k = s.nextInt();
        n =s .nextInt();
        <span class="hljs-keyword">if</span> (k&lt;<span class="hljs-number">0</span>) System.out.print(<span class="hljs-string">&quot;-&quot;</span>);
        do{
            <span class="hljs-keyword">if</span> (n==<span class="hljs-number">0</span>) System.out.print(k);
            <span class="hljs-keyword">else</span> System.out.print(k+<span class="hljs-string">&quot;X&quot;</span>+<span class="hljs-string">&quot;^&quot;</span>+n);
            k=s.nextInt();
            n=s.nextInt();
            <span class="hljs-keyword">if</span> (k&gt;<span class="hljs-number">0</span>) System.out.print(<span class="hljs-string">&quot;+&quot;</span>);
            <span class="hljs-keyword">if</span> (k==<span class="hljs-number">0</span>&amp;&amp;n==-<span class="hljs-number">1</span>) System.out.println();
        }<span class="hljs-keyword">while</span> (k!=<span class="hljs-number">0</span>&amp;&amp;n!=-<span class="hljs-number">1</span>&amp;&amp;s.hasNextInt());

    }
}
</code></pre>
<h3 id="noj1015&#x6700;&#x5927;&#x516C;&#x7EA6;&#x6570;&#x6700;&#x5C0F;&#x516C;&#x500D;&#x6570;">NOJ1015&#x6700;&#x5927;&#x516C;&#x7EA6;&#x6570;&#x6700;&#x5C0F;&#x516C;&#x500D;&#x6570;</h3>
<pre><code class="lang-Java"><span class="hljs-keyword">import</span> java.util.Scanner;

<span class="hljs-keyword">public</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">Main</span> </span>{
    <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">void</span> <span class="hljs-title">main</span><span class="hljs-params">(String[] args)</span> </span>{
        Scanner s =<span class="hljs-keyword">new</span> Scanner(System.in);
        <span class="hljs-keyword">int</span> a =s.nextInt();
        <span class="hljs-keyword">int</span> b =s.nextInt();
        <span class="hljs-keyword">int</span> gcd = gcd(a,b);
        <span class="hljs-keyword">int</span> gcb = a*b/gcd;<span class="hljs-comment">//&#x6700;&#x5C0F;&#x516C;&#x500D;&#x6570;&#x4E3A;a*b&#x9664;&#x4EE5;&#x6700;&#x5927;&#x516C;&#x7EA6;&#x6570;</span>
        System.out.println(gcd+<span class="hljs-string">&quot; &quot;</span>+gcb);

    }

    <span class="hljs-function"><span class="hljs-keyword">static</span> <span class="hljs-keyword">public</span> <span class="hljs-keyword">int</span> <span class="hljs-title">gcd</span><span class="hljs-params">(<span class="hljs-keyword">int</span> a, <span class="hljs-keyword">int</span> b)</span> </span>{
        <span class="hljs-keyword">if</span> (a == <span class="hljs-number">0</span>) <span class="hljs-keyword">return</span> a;
        <span class="hljs-keyword">if</span> (b == <span class="hljs-number">0</span>) <span class="hljs-keyword">return</span> b;
        <span class="hljs-keyword">if</span> (a &gt; b) {
            <span class="hljs-keyword">int</span> swap = a;
            a = b;
            b = swap;
        }
        <span class="hljs-keyword">while</span> (a&gt;<span class="hljs-number">0</span>){
            <span class="hljs-keyword">int</span> c = b%a;
            b=a;
            a=c;
        }
        <span class="hljs-keyword">return</span> b;
    }
}
</code></pre>

                                
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